Shaper-guard.



P. ERIGKSON.

SHAPER GUARD.

. APPLICATION FILED SEPT. 27, 1911. 1,025,866. Patented May 7, 1912.

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P. ERIGKSON,

, SHAPER GUARD.

APPLICATION FILED SEPT. 21, 1911.

Patented May 7, 1912.

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PETER ERIGKSON, OF CHICAGO, ILLINOIS.

SHAPER-GUARD.

Specification of Letters Patent.

Application filed September 27, 1911.

Patented May '7, 1912.

Serial No. 651,524.

To all whom it may concern Be it known that I, PETER ERIGKSON, a citizenof the United States, residing at Chicago, in the county of Cook andState of Illinois, have invented certain new and useful Improvements inShaper-Guards, of which the following is a specification.

My present invention relates particularly to an improvement in thatcharacter of devices commonly known as shaper guards and described andclaimed in my Patents Numbers 925,319 and 987,452, respectively, datedJune 15, 1909, and March 21, 1911.

The present improvement has for its principal object the rearrangementand adjust able connection of the part-s in order to promote simplicityin construction and operation and quick and easy manipulation andadjustment. These and other objects will be apparent from theaccompanying drawings, in which Figure 1 is a top plan view of my 1111proved construction and a portion of the shaper to which it is attached.Fig. 2 is a side elevation. Fig. 3 is a sectional view taken on the line33 ofFig. 1, and Fig. 4 is a central vertical section through the guardholder.

Referring specifically to these figures, 1 designates the shaper tableor top, upwardly through which extends the cutter or shaper head 2having blades 3. Secured to, and upstanding from the table 1 is a frameor stand 4, having connecting bolts 5, and on the upper portion of whichare revolubly mounted tubular horizontal bearing members 6, held bypivot bolts 7 and having squared bores 8 adapted to receive the respective ends of squared arms 9. The arms 9 are adj ustably securedwithin the members 6 by clamping screws 10 and each carry a similarguard mechanism, but as each of these mechanisms is identical, thefurther description will have to deal with only one of them. Adjacent tothe outer end of the arm 9 is a clamping bolt 12 and at the eX- tremityof said arm is a pivot bolt 12, the latter extending through aconformable opening in a segmental plate 11, and the former extendingthrough an arouate slot 13 in said plate so as to secure the same inselected angular adjustment. This plate 11 is provided with a verticaltubular bearing 11* for the reception of the guard-holding tube 14, oneside of said bearing being apertured to receive a movable clamping plug11 movable between ribs 11", to frictionally grip the periphery of saidtube under action of the intermediate eccentric portion of a pin shaft11 having a handle 11 The upper and lower ends of the adjustableguard-holding tube 14 are partially closed by apertured bushings 15,through the apertures of which extends a shaft 16, the upper end ofwhich is threaded and provided with an adjusting nut 17 bearingdownwardly upon the upper bushing 15. This shaft 16 is also providedwith a spring'18 coiled thereabout and compressed between anintermediate collar 19 and the upper bushing 15, and with a secondspring 20 coiled thereabout below the lower bushing 15 and above thesegmental shoe 21 to which is attached the guard 22. Thus the spring 20,which is normally inactive may be brought into play by screwing down thenut 17 a su'liicient dis tance when its pressure is desired in additionto that of spring 18, it being had in mind that tube 14 may. be adjustedvertically in such case by the members 11 and 11. The shaft 16 may alsohave upper and lower pairs of transverse pin shafts extendingtherethrough at right angles and carrying rollers 23 operating in slots24 in the bushings 15. Also revolubly secured upon the stand 4, by meansof a bolt 26 is an arm 27 having, at its outer end, a bearing 28 toreceive one end of an arm 30, and a clamping screw 31 to adjustably holdsaid arm. At its opposite end, arm 30 has a vertically disposed clampingeye 33 to adjustably hold the upper end of the stem 35 of thegageholding plate 34, carrying the gage 37.

In practice the gage 37 is properly adjusted by means of its connectionsat 26, 28 and 33, and the guard 22, which also acts as a presser foot,is also properly adjusted by means of its adjust-able shaft 16, holder14, plate 11, and arm 9 with its revoluble connection at 6, thesupplemental spring 20 being brought into operation when necessary, asbefore described. From this it will be seen that the device is simpleboth in construction and operation, is of a durable nature, and iscapable of quick and easy adjustment.

I claim:

1. In a shaper guard, the combination of a supporting stand, an armhaving a lengthwise adjustable and revoluble connection with said stand,a plate having an angularly adjustable connection with said arm, a

guard, a shaft to which said guard is connected, a tubular guardholderhaving an adjustable connection With said plate and through Which saidshaft is mounted, and means to tension the movement of said shaft.

2. In a shaper guard, the combination of a supporting stand, a bearingmember revolubly mounted on said stand, an arm adjustably connected tosaid bearing member, a plate having an angularly adjustable connectionWith said arm, a guard, a shaft to Which said guard is connected, atubular guard holder having an adjustable connection with said plate andthrough which said shaft is mounted, a spring compress between a portionof said holder and a portion of said shaft to tension the latter, asupple- PETER ERIOKSON.

Witnesses:

H. G. BATGHELOR, S. J. LEHRER.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). O.

